Description:
Holybro Microhard Telemetry Radio integrates microhard Pico Series RF module which is capable of delivering high-performance wireless serial communications in robust topologies, such as Point to Point, Point to Multipoint and secure Mesh (Mesh only available on P900).It uses frequency hopping spread spectrum (FHSS) technology, providing reliable wireless asynchronous data transfer between most equipment types which employ a serial interface. Fixed frequency is available on the P840 version. The radio is configured using AT commands through the Data port or using PicoConfig application through the Diagnostic Port.P900 Radio operate within the 902-928 MHz ISM frequency band while the P840 operate within 840-845Mhz, and P400 operate within 410-480MHz. You can select your radio based on your country"s available frequency band.

The product you are looking at now is the P400-C1S radio,and P400 operate within 410-480MHz.

Feature:
- USB Type-C port, integrated USB to UART converter
- 6-position JST-GH connector, can be directly connected to the TELEM port on various flight controller
- High voltage BEC onboard, Support DC7~35V voltage supply
- UART transmission LED indicator
- Three-stage RSSI LED indicator
- Transmission within a public, license-exempt band of the radio spectrum
- Transparent, low latency link rates up to 345 kbps
- 32 bits of CRC, selectable retransmission and forward error correction
- Separate diagnostics port, transparent remote diagnostics and online network control

Specification:
Brand: Holybro
Model:P400-C1S Microhard Telemetry Radio

Frequency Range: 410 to 480 MHz
Transmit Power(software adjustable): 100mW to 1W (20-30dBm)
Link Rate: Up to 345 kbps
Serial Baud Rate: 300 bps to 230 kbps
Range: Up to 60 miles (100 km) @ 19.2 kbps
Spreading Method: Frequency Hopping, GMSK.2GFSK.4GFSK.QPSK
Operating Modes: Point-to-Point, Point-to-Multipoint,Store & Forward Repeater, Peer-to-Peer
Input Voltage: DC7~35V(4-position JST-GH)
Power Consumption:
Sleep < 1mA
Idle 20mA
Rx: 45mA to 98mA
Tx Peak: 2A
Error Detection: 32 bits of CRC, ARQ
Weight:44g (without antenna) /67g (with antenna)

Package Included:
1pcs Set:
1x Microhard P400 Radio
1x Antenna
1x XT30 Power cable
1x GH 6P to 6P cable
1x Metal Pin

2pcs Set:
2x Microhard P400 Radio
2x Antenna
2x XT30 Power cable
1x GH 6P to 6P cable
1x Metal Pin